Chapter 25: The Respitory System Flashcards
Otorhinolaryngology
Ear, nose, and throat
Pulmonologist
Diagnosis and treatment of lung disease
Primary function of the respitory system
Gas exchange
Functions of the respitory system
- gas transport and gas exchange
- gas conditioning (cleanse, humidify, and warm)
- filters inhaled air
- produces sounds (vocalization)
- oldfaction
- immune defence
- eliminates small amounts of water and heat through exhaled air
The respitory systems are seperated based on
Structure
Upper respiratory system (URT) consists of
- nose / nasal cavity
- paranasal cavity
- pharynx
- larynx
- tonsils
- associated structure
The lower respiratory system consists of
- trachea
- bronchi
- lungs
Conducting zone purpose
Filters, warms, moistens, and conducts air into the lungs
Respitory zone purpose
Sites of gas exchange
The conducting zone consists of
- nose / nasal cavity
- pharynx
- larynx
- trachea
- bronchi
- bronchioles
- terminal bronchioles
Respiratory Zone Consists of
- respitory bronchioles
- alveolar ducts
- alveolar sacs
- alveoli
The conducting and respiratory zone are seperated based on
Functions
What are the two regions of the nasal cavity
- respiratory region
- olfactory region
Conchae
Bony projections from the lateral wall of the nasal cavity
Meatuses
- air passageway between the conchae
- lined by mucous membranes
- swirl/ warm/ moisten inhaled air
- increases surface area
- prevents dehydration
What secretes mucous
Goblet cells
Paranasal sinuses and nasolacrimal duct
- secretions help moisten air
Cilia
- move mucous and trapped dust particle towards the pharynx
Nasal cavity structures
- conchae
- meatuses
- paranasal sinuses and nasolacrimal ducts
- cilia
Functions of the nose / nasal cavity
- warm, mistime and filter inhaled air
- detect olfactory
- modifies speech ad air passes through resonating chambers